72054751 has 2 divisors, whose sum is σ = 72054752. Its totient is φ = 72054750.

The previous prime is 72054737. The next prime is 72054781. The reversal of 72054751 is 15745027.

It is a weak prime.

It is an emirp because it is prime and its reverse (15745027) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72054751 - 2⁷ = 72054623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72054701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36027375 + 36027376.

It is an arithmetic number, because the mean of its divisors is an integer number (36027376).

Almost surely, 2^72054751 is an apocalyptic number.

72054751 is a deficient number, since it is larger than the sum of its proper divisors (1).

72054751 is an equidigital number, since it uses as much as digits as its factorization.

72054751 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9800, while the sum is 31.

The square root of 72054751 is about 8488.5069947547. The cubic root of 72054751 is about 416.1221885122.

Adding to 72054751 its reverse (15745027), we get a palindrome (87799778).

The spelling of 72054751 in words is "seventy-two million, fifty-four thousand, seven hundred fifty-one".